I'm learning java, what database knowledge is enough?

Question

MySQL

What database knowledge is enough for me to work with java?
I will be grateful for the answers.

Answer 1

I disagree with IceJOKER .
You need to know at least SQL at a decent level and be able to install the database that you most likely plan to work with. For example, MySQL is installed very simply and quickly and does not require much knowledge.
But even if you plan to use only ORM and not go into the database with handles, you still MUST understand well what INNER JOIN, OUTER JOIN (LEFT, RIGHT), ORDER BY, HAVING, etc. are.
Otherwise, you will become another developer who will make 2-3 queries and then collect the results of the selection in cycles (hint .: ORMs can JOIN's. Almost everything. It's just that most people ignore this possibility. And then you have to scale vertically indecent servers from the database )

Answer 2

To work with java, knowledge of the database is not needed O_O,
but if you want to work with the database, then the initial knowledge of select/insert/update/delete is enough, as in all other languages, I don’t understand why you asked "to work with java"

Answer 3

SQL (at least MySQL only), JDBC, Hibernate